Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/js-mark/skills/claude-mdgit clone --depth 1 https://github.com/JS-mark/skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/js-mark/skills/claude-md)<a href="https://agentmods.dev/instructions/js-mark/skills/claude-md"><img src="https://agentmods.dev/badge/instructions/js-mark/skills/claude-md.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.01315 | $0.01315 |
| Opus 5 | $0.00658 | $0.00658 |
| Sonnet 5 | $0.00263 | $0.00263 |
| Haiku 4.5 | $0.00131 | $0.00131 |
Grade A, and why
skills CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 132 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Project Overview
A monorepo containing Claude Code Skills (Markdown-based agent instructions) and supporting TypeScript packages. Skills are pure Markdown consumed by Claude Code's skill system; packages provide runtime tooling (MCP servers, dashboards, shared utilities).
Commands
pnpm install # Install dependencies
pnpm build # Build all packages (recursive)
pnpm test # Run all tests (vitest)
pnpm test -- packages/shared # Run tests for a single package
pnpm test:watch # Watch mode
pnpm lint # Lint (eslint, @antfu/eslint-config)
pnpm lint:fix # Lint and auto-fix
pnpm gen:skill <name> # Scaffold a new skill
pnpm update-plugin # Rebuild & copy agent-pipeline to ~/.claude/plugins/
pnpm release # Version bump (bumpp)
pnpm docs:dev # VitePress dev server
pnpm docs:build # Build documentation site
pnpm market:dev # Marketplace Nuxt dev server
pnpm market:build # Build marketplace for production
Architecture
skills/ → Claude Code Skills (pure Markdown, NOT in pnpm workspace)
<name>/SKILL.md Frontmatter (name, description, version, author, tags) + instructions
<name>/references/ Supporting docs for the skill
packages/ → TypeScript packages (pnpm workspace members)
agent-pipeline/ MCP server (@modelcontextprotocol/sdk) — orchestrates multi-agent dev pipeline
src/server.js MCP tool definitions (no build step, raw JS)
dashboard/ Pre-built Next.js static export (copied from pipeline-dashboard)
pipeline-dashboard/ Next.js web UI for monitoring pipeline progress (private, not published)
shared/ Shared TS utilities — built with tsdown (ESM + CJS + dts)
apps/ → Web applications & sites (pnpm workspace members)
docs/ VitePress documentation site (private)
marketplace/ Nuxt 3 app — Skill & MCP marketplace (Vercel deployed, SSR)
scripts/ → Dev tooling (run with tsx)
gen-skill.ts Scaffold new skill directory
update-plugin.ts Build dashboard + copy agent-pipeline to local plugin install
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 3d ago First seen · 132 lines · 1,315 tokens per session scan A 1df7c24455b3
skills CLAUDE.md is an instructions file published in the GitHub repository JS-mark/skills (2 stars, last pushed 1mo ago), licensed MIT. It adds 1,315 tokens to every session, about $0.0066 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
next.js AGENTS.md
Instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.